> Companies are handed a certain amount of certificates depending on their size (prone to corruption). Seems like it would make sense to replace the "hand them

> Companies are handed a certain amount of certificates depending on their size (prone to corruption). Seems like it would make sense to replace the "hand them out based on size" step (I've heard "based on historical emissions" before as well) with "auction them off to the highest bidder". This isn't revenue neutral, but you could make it so by then simply cutting some tax (personal income tax, most likely) until it is, if that's the goal.